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20 x 110mm USN United States

20 x 110mm USN HEI United States . RNO . 1-68 . 20MM MK5.MOD.0 profile view.20 x 110mm USN HEI United States . RNO . 1-68 . 20MM MK5.MOD.0 head view.

Details

TypeHEI
Projectilesteel, yellow, 1 copper driving band Driving Band Markings: ZEL-6-15-65 -20MM-M56E2
Casesteel, cadmium plated
Primernone
Headstamp. RNO . 1-68 . 20MM MK5.MOD.0
NotesThis appears to be a stuffer with an inert 20x102mm HEI projectile improperly mated to a 20x110mm USN case. However, identical specimens exist in other collections.